Temporary insulator.



C. W. POTTER & A. P. VAN DEIN SE.

- TEMPORARY INSULATOR.

APPLICATION FILED APR. 2a, 1913.

Patented June 23, 1914.

to insulatorsndnpted for use in temporarily ing are"usuallyfe d from a single service' comprise a small wire. passing through holes and hymn F. VAN Dn'mss, citizens of the I,'n1ted States. resldln at Albuquerque, 1n

Mexico, have invented certain new end use- .ofwhich the following'is a: full, clear, and

panies'when its-is desired'to disconnect the.

' out tlie=,knowledge ofthe electrical company.

- providing" a means for disconnecting the service, the= arrangement, construction and claims.

4 UNITED STATES PATENT OFFICE.

cHAitLEs w. ro'rrsn Ann ANTON r. VAtt nriINsE, or ALBUQUERQUE. NEW MExroe TEMPDRARY INSULA 'IOR.

Specification of letters Patent. s nc uon filed April '23, 191:5. eria1ho."i62,992.

Patented Julhe 23, 19 14;.

To all whom it mhfz comer/z: lie it known that We, CHARLnsW. POTTER the county of Bernalil 0 and State of New fnl Improvementsin Temporary Insulators,

exact description. x

Ourinventlon relatessto lmprovements in temporary insulators and more particularly disconnecting service wires and the like. is theusual custom among electrical coin-i measured service, toremove the meter anddisconnectjthe.serviceqvires atfthe poles in order to prevent an occupant from using current'withont' the knowledge of the electrical r-r'rrit' ianyi l loivever, in a 'iartment houses and office buildingsg-kit is usually 1m prncticolileto cutoff the meterloop as the apartments. or'oflice suites in thesame huildmain. Consequently, when the meteris rewith insuliitingmaterial-and it isnecessary meter loop inordcr toohtuin current with- The object ot'our iuvcntion, therefore, is to avoid.these;oh ect1ons-and it consists "1n operation of which 'will be hereinafter fully describedand'Preferred to in the appended In the-accompanying drawings- Figure 1 is'an elevation-'of-a meter with a portionof the coverfibrokn awayrand Figs. 2 and 3' shows form's oftem orary insulators.

Referringto the timings, 1 and 2 repre sent the fecd'wires; and 3 and 4. thewires leading to the load, the current passing through the meter'5. The terminals of the feed and load I wires lead into the meter from below'and are fastened in the terminal blocksfi by the binding-screws 7.; The-cover 8 of thefmete'r whichirextends over'and conceals the binding-screws, is secured against unauthorizedremovelb the seals 9 which 10 in-thebolt fastened to the meter, and 5 holes 11 in the nutswhich-hold the cover-in E place, the ends of the wire being settled with leader the like. Theme of this particuler form of seal is not essential and any Well as shown in Fig. 2. "It is evident that. tubes .or caps made of any. insulating materiel such as rubber, asbestos, etc, may he used instead of the peper'ones shown and del 1 u 'Ai, f When it is desired to disconnect service, the cover is removed, and elther the feed-- wires or theload wires are removed from ,the terminal blocks by loosening the binding-screws 7. The caps or tubes of insulatmg material are then slipped over the bare ends of'the conductors imd the covered ends are reinserted in the terminal blocks and fastened tightly in place by the binding:-

screws. The cover. is placed on the meter and the nuts 11 tightened to hold the cover in place; and the seals are then afiixed. It is to be noted that with this form of insulation the circuit will be positively disconnected inside of themeter and the wires are held tightly in place so thatit is impossi" ble to removethe insulating devices or withdraw the wi-res' from the meter unless the seals are broken and the binding-screws 7 loosened. This connection avoids the nieces sityof removing the meter which, being a delicate instrument, is very liable to be dam= aged and often is, in removing it and replacing it, as is necessury when an occupant leaves or enters an apartment or ofllco suite.

' -Our invention is not limited to this speci fic application, but may be. used in modi fied forms for the purpose of positively opening any circuit temporarily as, for example, insulating washers may be placed" under fuse plugs and sheets of material may be placed between the blades and jaws of e.

service switch. Containing boxes may be provided for such hiss-plugs, etc, as in the" case of the meter, and these boxes may be locked or sealed in any desired way. I

Having thus described our invention, we claim t- Lrln combination. an electric conductor, an electric device normally in circuit there with, coii'i'uRingmeans-hr the two. means for temporarily insulating said conductor and device from each other, said means cornand n locked housi lag t lieireforya w-binding posit within the housing, an electric conducrmlending mm said housing and mechanically connected with said binding-post, and an ii'idepen'flent removable insulating body interposed ,lietween-lhe conductor and the screws, and means {or temporarily dlSCOIP neclzing s iij :n'istrnn'ient from the conducfor, said means con'iprising an insulating shield interposed between the .tenninal hloclzs and the coudgictor said insulator being held in place hysairl hinrling-screw, a 1

(over for said binding-screw, :Uld means.

provided with a. lock for holding said cover in closed position.

2|) The combination of an lectrical device nomlucting pails of the binding-post.

In witness whereof, eeubsc 'ibe piliggigT nalm'es in the pre enceoft wowihie I J CHARLES W. POTTER AN KTON F. 

